Users can give a weight to each data instance.
You must store weights in a separated file and specify -W your_weight_file. This setting is different from earlier versions where weights are in the first column of training data.
Training/testing sets are the same as those for standard LIBSVM/LIBLINEAR.
We do not support weights for test data.
All solvers are supported.
Matlab/Python interfaces for both LIBSVM/LIBLIENAR are supported.
We are interested in successful stories of using instance weights. Please keep us informed.
Author: Ming-Wei Chang, Hsuan-Tien Lin, Ming-Hen Tsai, Chia-Hua Ho and Hsiang-Fu Yu.